Knocking on Heaven's Door

Mad Moxxi will instruct you to find access points that lead the way to Flyboy’s lair. Blast your way past these and you’ll have a shot at Flyboy.

Make your way down the hill towards the bus. Pull out a corrosive weapon of you’ve got it. Loaders lie ahead.

Circle around the settlement and you’ll come across sets of stairs. Battle your way up them while fighting some Torgue architects. Be mindful of the architects that toss explosive barrels at you.

Keep climbing the stairs and once you’re at the top, the access point will be waiting on a building to the left. Pull the lever and a second access point will trigger on the door at the end of the path you just came from.

Pull the switch and the door will open into a similar area where more Loaders will spawn.

Take the path to your left as indicated by waypoint.

In the building on the right side of this path is fair amount of ammo chests. Stock up if you need to and continue down the hill where you’ll come across a fork. There is a giant arrow pointing in the direction you should head. The path right leads to a pit of lava.

Groups of Skags will spawn and attack you when you pass the arrow. When they’re threw, there will be another fork. Take the one left again and you’ll see another lit up arrow pointing right. More Skags will attack and some Loaders as well.

Taking this direction gives you the high ground against the Loaders that wait for you below.

The last access point is in a small hut behind a flipped over yellow bus. Throwing this switch will activate the battle board on the other side up the map. Leave the building and start in the direction of your waypoint.

The fastest way up the the hill is to jump up the low boulders near the billboard. Once you’re up there, climb the hill and you’ll see ammo and med stations. Stock up and turn in the quest to begin Chapter 12: Twelve O’Clock High.